The Grammy Award-winning Pacifica Quartet’s reputation for ambitious and daring repertory choices is closely matched by its superb technical mastery and the palpable joy of music that comes across in live performance. As the Los Angeles Times aptly puts it, “The Pacifica Quartet likes to think big.” The magnetic Marc-André Hamelin is their perfect partner in a program that pairs two great piano quintets; the rarely performed Ornstein and the beloved Dvořák.